He's known for pumping iron, but Arnold Schwarzenegger will go with a different flow on the banks of Melbourne's Yarra River. The actor, bodybuilder and politician is launching a yoga class to raise funds for the Royal Children's Hospital. Flow for a Cause will be held on the front lawn of the Melbourne Convention and Exhibition Centre by the river as part of the Arnold Sports Festival Australia. The session, which costs $25 per person, is raising money for the Good Friday Appeal. Australian Associated Press